Rat Catchers, Madamba, Mozambique

However, the story has a modern setting, not a Victorian one, and therefore the rat-catcher in the story is more a general pest-control man, not strictly a specialist in rats alone.
Mozambique
Officially the Republic Mozambique (Portuguese: Moçambique or República de Moçambique), is a country in southeastern Africa bordered by the Indian Ocean to the east, Tanzania to the north, Malawi and Zambia to the northwest, Zimbabwe to the west and Swaziland and South Africa to the southwest.